udev/network-hotplug-rename

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2011  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 # Setup logging.
  23 LOG_FACILITY="network-hotplug-rename"
  24 LOG_DISABLE_STDOUT="true"
  25
  26 . /usr/lib/network/functions
  27
  28 # Setup the locking.
  29 LOCKFILE="${RUN_DIR}/.rename_lock"
  30 function cleanup() {
  31         lock_release ${LOCKFILE}
  32 }
  33 trap cleanup EXIT TERM KILL
  34
  35 # Check if the INTERFACE variable is properly set.
  36 assert isset INTERFACE
  37
  38 # Log what we are doing here.
  39 log DEBUG "Called for interface '${INTERFACE}'."
  40
  41 # Acquiring lock for this operation.
  42 lock_acquire ${LOCKFILE}
  43
  44 # Get the name of that device from the configuration
  45 # or return a new one if it is unknown.
  46 device_hotplug ${INTERFACE}
  47
  48 exit $?